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2019•Unpublished venueRequires access

Experimental Confirmation of Propulsion and Levitation Control for Linear Induction Motor

Daichi Okamori, Shouta Nakatani, Kenta Sannomiya, Toshimitsu Morizane, Noriyuki Kimura, Hideki Omori

Open publisher page 2 citations

Abstract

Linear motors and Electro Magnetic Suspension (EMS) are used in the maglev system. Linear Induction motors (LIMs) have simple structure, flexible mechanism, and direct drive. HSST (High Speed Surface Transport) system is one of the magnetic levitation systems using LIM. In this system, the traction is controlled by LIM, and the levitation is controlled by EMS respectively. However, this systems have problems, for example the attractive force generated from LIM disturbs the levitation control of the EMS. We have proposed a new magnetic levitation system without EMS. In this system, the attractive force generated from LIM is used as the levitation force. We have also proposed a new control method of the thrust force and attractive force independently and simultaneously. It uses two frequency components. In this paper, we verify the control performance of propulsion and levitation by the experiments.

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What this paper is about

Linear motors and Electro Magnetic Suspension (EMS) are used in the maglev system. Linear Induction motors (LIMs) have simple structure, flexible mechanism, and direct drive. HSST (High Speed Surface Transport) system is one of the magnetic levitation systems using LIM. In this system, the traction is controlled by LIM, and the levitation is controlled by EMS respectively. However, this systems have problems, for example the attractive force generated from LIM disturbs the levitation control of the EMS. We have proposed a new magnetic levitation system without EMS. In this system, the attractive force generated from LIM is used as the levitation force. We have also proposed a new control method of the thrust force and attractive force independently and simultaneously. It uses two frequency components. In this paper, we verify the control performance of propulsion and levitation by the experiments.

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Available abstract

Linear motors and Electro Magnetic Suspension (EMS) are used in the maglev system. Linear Induction motors (LIMs) have simple structure, flexible mechanism, and direct drive. HSST (High Speed Surface Transport) system is one of the magnetic levitation systems using LIM. In this system, the traction is controlled by LIM, and the levitation is controlled by EMS respectively. However, this systems have problems, for example the attractive force generated from LIM disturbs the levitation control of the EMS. We have proposed a new magnetic levitation system without EMS. In this system, the attractive force generated from LIM is used as the levitation force. We have also proposed a new control method of the thrust force and attractive force independently and simultaneously. It uses two frequency components. In this paper, we verify the control performance of propulsion and levitation by the experiments.

Key concepts: Linear induction motor, Maglev, Levitation, Magnetic levitation, Linear motor, Propulsion, Electrodynamic suspension, Thrust

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